Remove lockdown math redirects

data/lesson-redirects.yaml

@@ -1,11 +1 @@
-quaternions-and-3d-rotation: https://eater.net/quaternions
-ldm-quadratic: https://itempool.com/3b1b/c/ag9L0EqZFtK
-ldm-trigonometry: https://itempool.com/3b1b/c/XYq2wSLpFf5
-ldm-complex-numbers: https://itempool.com/3b1b/c/osSo1bARsZM
-ldm-eulers-formula: https://itempool.com/3b1b/c/Q9Knk-DJta8
-ldm-imaginary-interest: https://itempool.com/3b1b/c/eFvHH7xPTFv
-ldm-logarithms: https://itempool.com/3b1b/c/6XOc6exC7am
-ldm-natural-logs: https://itempool.com/3b1b/c/uByeGoOoUqV
-ldm-power-towers: https://itempool.com/3b1b/c/uWqIFw3Umzc
-ldm-i-to-i: https://itempool.com/3b1b/c/ZrPegkqcq3H
-ldm-tips-to-problem-solving: https://itempool.com/3b1b/c/7uwXHTwR5TX
+quaternions-and-3d-rotation: https://eater.net/quaternions